%0 Journal Article
%A S. A. Kas'yanyuk
%A G. I. Tkachuk
%T A certain class of extremal problems for a circular disc that is subjected to the action of concentrated forces
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1974
%P 32-38
%N 4
%U http://geodesic.mathdoc.fr/item/IVM_1974_4_a4/
%G ru
%F IVM_1974_4_a4